diff --git a/src/pages/Book.tsx b/src/pages/Book.tsx
index 495c440..179b0f0 100644
--- a/src/pages/Book.tsx
+++ b/src/pages/Book.tsx
@@ -519,7 +519,7 @@ export function BookPage() {
                     <option value="small">Small (under 15 lbs)</option>
                     <option value="medium">Medium (15–40 lbs)</option>
                     <option value="large">Large (40–80 lbs)</option>
-                    <option value="x-large">X-Large (over 80 lbs)</option>
+                    <option value="xlarge">X-Large (over 80 lbs)</option>
                   </select>
                 </div>
                 <div>